Furnace



June24,1930. imam v 1,765,436

' FURNACE Filed Dec. 13. 1927' INVENTOR m5 Ego/41v KUB ATTORNEY PatentedJune 24, 1930 UNITED STATES PATENT OFFHIE -J'OHN KUBIK, OF NEW YORK, N.Y., ASSIGNOR 0F ONE-HALF TO JOSEPH LORINCZ, OF

new YORK, 1v. Y.

FURNACE This invention relates to a furnace for the heat treatment ofsteel wire and other forms of metallic materials, and its chief objectis to provide a structure of this character having a novel means for theapplication of heat, whereby the formation of scale on the tank elementis largely eliminated and its period of service lengthened.

Another object is a means for the saving of the fused element of thebath when a leakage finally occurs in the -aforesaid tank, and theprevention of dirt and foreign matter from getting mixed in the saidfused element when the same leaks through the furnace heating chamber.

These and other objects and features of the invention will be fullydescribed in the following specification and claim, and illustrated inthe accompanying drawings, in which: 7

,Fig. 1 shows a top plan view.

Fig. 2 shows a vertical section on the line 2 2 of Figure 1, with aportion of'the base of the stack broken away to disclose its inner form.

Fig. 3 shows a vertical cross section on the line 3-3 of Figure 2.

The construction is as follows:

Referring first to Figure 1 of the drawings; a wall having front andback elements 10 and 11 and ends 12 and 13, is built of suitable heatresisting material and is reinforced by an outer casing of iron or likematerial 14. This casing is set deep in the floor 15 as seen at 16 inFigure 2. Still referring chiefly to Figure 1; a stack 17 is built atone end of the furnace and at a point near to the back thereof. A tank18 which is usually of iron, is supported on thewalls by means of themarginal flange 19.

On reference to Figure 2, it will be seen' that this tank rests overtheheat chamber 20, which has an inclined bottom lining -21 of suitablerefractory material. This bottom lining at'its lowest point connectswith a base lining 22 which, on reference to Figure 3 will be seen to beinclined toward the front wall of the furnace. A'tube 23 perforates thewall at the termination of the inclined base lining. At a point above,and of corresponding area tothe base lining, is an arch 24, also of fireresisting materia Referring again to burning jet 25 passes through thefront wall and is provided with suitable means of control. In thedrawings; two of these 'ets are shown, but more, or less may be use asdesired; or other means of supplying heat may be employed.

A.- vent 28 connects the heating chamber with the stack 17 as indicatedby the dotted line 29 in Figure 1. Concrete aggregate 30 supports theinclined bottom lining 21 as illustrated.

In the drawings; the furnace is shown arranged for the heat treatment ofwire, and.

any convenient number of these as seen at 35,

'36 etc., may be drawn through the tank, passing first over a roller 37,thence downward under a cross bar 38 and along the interior of the tankand submerged within the fused element 39, the surface of which isindicated at 40. This element usually consists of molten lead maintainedat the required heat for the purpose. The wires pass from under thecross bar 41 upward and over the roller 42, from which they proceed tofurther forms of treatment .not within the purpose of this invention.

The principal object of this device, viz; the

retarding of the formation of scale on the tank and its consequentgreater period of usefulness; is attained by means of the indirectapplication of heat. The flame 45 being shielded by the arch 24 so thatit does not come in direct contact with the bottom of the tank, and theheat being conducted in the direction indicated by the arrows46 andthrown upwardagainst the said tank by the inclined surface of the bottomlining 21. This inclined bottom lining also serves; in the event of thefinal failure and leakage of the tank; to direct the flow of the moltenlead toward the base lining 22 which shunts it off to one side where itmay flow through the tube 23 into a receptacle which may be so placed asto receive it. It is thus kept clean and free from particles of foreignmatter, and may be again used in a new tank without the need of anyclarifying process. I

Figure 2, an oil or gas" a discharge tube at the lower beneath theforward end of the said tank and a sub-bottom at the base end of the saiinclined bottom and the floor of the said subbottom inclined downward ina direction transverse to that of the-inclined bottom, and extremity ofthessub-bottom.

1 York and State-of New York this 21st day of September, A. D. 1927.

, JOHN IK- gned at New York in the county of New

